My Resources were: Wikipedia, Youtube, and also Recycling to help get bottles. We Researched the history of how sound travels through a bottle. Also We've researched why it makes a sound. Apparently The reason why it makes a sound is because the air travels through the bottle and makes a sound when the air comes back out.
 
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All the materials we have used are:
- Fountain Pen
- Note cards
- 10 differently sized plastic bottles: 2 500 ml bottles            
( different sizes), 1 liter bottle, 1 370 ml bottle, 2 355 ml (different sizes) bottle, 2 330 ml bottles (different sizes), 1 591 ml bottle, and 1 236ml bottle.
- Scotch Tape
- Funnel (optional but helps pour water into the bottle)
- Measuring cups
- 125 ml Water
- Air
- Recording Device
- Computer
- Graphs
- #2 Pencil
- Camera ( Optional )